Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

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Abstract

We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.
Original languageEnglish
JournalJournal of Chemical Physics
Volume112
Issue number1
Pages (from-to)106-111
ISSN0021-9606
DOIs
Publication statusPublished - 2000

Bibliographical note

Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

  • MOTION
  • EXCITATION
  • PHOTODISSOCIATION
  • MOLECULES
  • DYNAMICS

Cite this

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title = "Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy",
abstract = "We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.",
keywords = "MOTION, EXCITATION, PHOTODISSOCIATION, MOLECULES, DYNAMICS",
author = "Volker Engel and Henriksen, {Niels Engholm}",
note = "Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",
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}

Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy. / Engel, Volker; Henriksen, Niels Engholm.

In: Journal of Chemical Physics, Vol. 112, No. 1, 2000, p. 106-111.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

AU - Engel, Volker

AU - Henriksen, Niels Engholm

N1 - Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 2000

Y1 - 2000

N2 - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

AB - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

KW - MOTION

KW - EXCITATION

KW - PHOTODISSOCIATION

KW - MOLECULES

KW - DYNAMICS

U2 - 10.1063/1.480566

DO - 10.1063/1.480566

M3 - Journal article

VL - 112

SP - 106

EP - 111

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 1

ER -